The Mozilla Windows updater modifies some files to be updated by reading the original…
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The Mozilla Windows updater modifies some files to be updated by reading the original file and applying changes to it. The location of the original file can be altered by a malicious user by passing a special path to the callback parameter through the Mozilla Maintenance Service, allowing the manipulation of files in the installation directory and privilege escalation by manipulating the Mozilla Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Firefox ESR | before 52.2 | 52.2 | Patch available | CNA |
| Mozilla | Firefox | before 54 | 54 | Patch available | CNA |
Remediation
- Fix · CNA Firefox ESR (Mozilla) Fixed in 52.2
- Fix · CNA Firefox (Mozilla) Fixed in 54
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 54
12 records Highest priority Priority MEDIUM 1 MEDIUM, 11 LOW
Other records, highest priority first
- TI-2017-03494 Memory corruption in Mozilla FirefoxPriority MEDIUM 46
- TI-2017-05382 Improper input validation in Mozilla FirefoxPriority LOW 37
- TI-2017-05375 Untrusted search path in Mozilla FirefoxPriority LOW 37
- Release ·
Mozilla Firefox ESR 52.2
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2017-05375 Untrusted search path in Mozilla FirefoxPriority LOW 37
- TI-2017-05385 Improper input validation in Mozilla FirefoxPriority LOW 36
- TI-2017-05386 An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows…Priority LOW 34
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7760
- 2026-10-03 Alias added: GHSA-v3f8-p9hj-32cj
References
More Mozilla Firefox vulnerabilities
- TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
- TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2017-7760 · CVE Program
- CVE-2017-7760 · NVD
- FIRST EPSS
- GHSA-v3f8-p9hj-32cj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences